Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.
Related to cross-sectional: Cross-Sectional Area, Cross-sectional analysis, Cross-sectional data
1. In histology, a sectioning of a tissue or organ perpendicular to its longitudinal axis.
2. Relating to planar sections of an anatomic or other structure.See: synchronic.
Etymology: L, crux + secare, to cut
(in statistics) pertaining to the sampling of a defined population at one point in time, performed in a nonexperimental research design. Compare longitudinal.
Relating to planar sections of an anatomic or other structure.